Decision Support Systems Option Topic #2 HSC IPT
Topic Outline Characteristics Examples Organising in decision support Processing in decision support Analysing in decision support Other information processes Issues related to decision support
Characteristics A decision support system is an information system designed to assist in decision making.
The functions a DSS may perform include Handle large amounts of data from different sources. Provide report and presentation flexibility. Support drill-down analysis. Use advanced SW packages to perform complex operations. Support optimisation, satisficing and heuristic approaches. Perform ‘what-if’ simulation and goal seeking analysis.
The functions a DSS may perform include – Handle large amounts of data from different sources. Provide report and presentation flexibility. Support drill-down analysis.drill-down analysis Use advanced SW packages to perform complex operations. Support optimisation, satisficing and heuristic approaches.optimisationsatisficingheuristic approaches Perform ‘what-if’ simulation and goal seeking analysis.‘what-if’ simulation goal seeking analysis.
Decision making The 3 elements of decision making are - Intelligence Design Choice
Types of problems - Structured Semi-structured Unstructured
Examples Types of decision support systems – Spreadsheets Databases Expert systems Artificial neural networks
Organising in decision support Steps in designing a spreadsheet solution – Analysis Design the solution Implement the solution Refinement and maintenance
Processing in decision support Artificial intelligence (AI) Expert systems Expert system shells Automation of spreadsheets using macros macros
Analysing in decision support Data warehousing Data marts Data mining Data matching Extracting data
Other information processes Collecting, storing and retrieving data The role of the expert and the knowledge engineer in the creation of expert systemsknowledge engineer Use of intelligent systems to search data
Issues related to decision support Reasons for using intelligent systems in decision support Responsibilities of those performing data mining Group decision support systems Responsibility
References Chivers, B. et. Al. (2001). Information Processes & Technology – HSC Course. Australia: Jacaranda. Johnstone, G. et. Al. (2000). Information Processes & Technology – Excel HSC. Australia: Excel.